Embodiments of the present disclosure provide an organic transistor, a method for producing the same and an OLED display device. The organic transistor includes: a collector and an emitter stacked above a substrate; a first organic semiconductor layer, a second organic semiconductor layer and a base between the first and second organic semiconductor layers, stacked and provided between the collector and the emitter; wherein the base forms a Schottky contact with the first organic semiconductor layer and forms a Schottky contact with the second organic semiconductor layer.